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Article

Multilevel Diversity Coding with Secure Regeneration: Separate Coding Achieves the MBR Point

by 1,*, 2, 2 and 3
1
Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA
3
Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230026, China
*
Author to whom correspondence should be addressed.
Entropy 2018, 20(10), 751; https://doi.org/10.3390/e20100751
Received: 14 August 2018 / Revised: 21 September 2018 / Accepted: 29 September 2018 / Published: 30 September 2018
(This article belongs to the Special Issue Multiuser Information Theory II)
The problem of multilevel diversity coding with secure regeneration (MDC-SR) is considered, which includes the problems of multilevel diversity coding with regeneration (MDC-R) and secure regenerating code (SRC) as special cases. Two outer bounds are established, showing that separate coding can achieve the minimum-bandwidth-regeneration (MBR) point of the achievable normalized storage-capacity repair-bandwidth trade-off regions for the general MDC-SR problem. The core of the new converse results is an exchange lemma, which can be established using Han’s subset inequality. View Full-Text
Keywords: distributed storage; regenerating codes; multilevel diversity coding; information-theoretic security distributed storage; regenerating codes; multilevel diversity coding; information-theoretic security
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MDPI and ACS Style

Shao, S.; Liu, T.; Tian, C.; Shen, C. Multilevel Diversity Coding with Secure Regeneration: Separate Coding Achieves the MBR Point. Entropy 2018, 20, 751. https://doi.org/10.3390/e20100751

AMA Style

Shao S, Liu T, Tian C, Shen C. Multilevel Diversity Coding with Secure Regeneration: Separate Coding Achieves the MBR Point. Entropy. 2018; 20(10):751. https://doi.org/10.3390/e20100751

Chicago/Turabian Style

Shao, Shuo, Tie Liu, Chao Tian, and Cong Shen. 2018. "Multilevel Diversity Coding with Secure Regeneration: Separate Coding Achieves the MBR Point" Entropy 20, no. 10: 751. https://doi.org/10.3390/e20100751

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